Tile for boiler tubes



Sept. 6, 1932. h c. H. JOHNSON n 1,876,301

' TILE FOR BOILER TUBES med Dec. 17. 1928 2 sheets-sheet 1 l mi INVENTR )w' JMU ATTORNEYS Sept. 6, 1932.` c. H. JoHNsQN' uma FORy 150mml 'russ Filed Dec. 1v, 192e 2' sheets-sheet 2 m69 Fumo wd ATToNEY;

INVENTOR Y 1 the invention; Fig.

showing a modification;

Patented Sept. 6, 1932 UNt-TED STATES PATENT OFFICE CHARLES H. JOHNSON, OF

LEHIGH COMPANY, 0F WARE MASSACHUSETTS, ASSIGNOB TO FULLER.

CORPORATION 0F DELL- TILE FOR BOILEB TUBES Application led December 17,

This invention relates to tile that may be applied to tubes to provide walls or baffles. The tile can be applied to the tubes and will remain in place without requiring holding members for this purpose. The invention will be understood from the descri tion in connection with the accompanying ravvings in which Fig. 1 is a side view partly broken away, showing an illustrative embodiment of 2 is a section along the line 2-2 of Fig. 1; Fig. 3 is a view similar to Fig. 2 on an enlarged scale; Fig. 4 is a section similar to Fig. 2, showing a modification; Fig. 5 is a side view similar to Fig. 1,

Fig. 6 is a section along the line 6-6 of Fig. 5; Fig. 7 is a section along the line 77 of Fig. 8; Fig. 8 is a section along the line 8-8 of Fig. 7; Fig. 9 is a plan view of one of the tile; and Fig. 1() is a view taken at right angles to Fig. 9.

In the drawings reference character 1 indicates a row of boiler tubes to which the tile 2 are applied. The portions that contact with the tubes are made curved as indicated at 3 to fit the tubes. Each one of the tile is provided with aprojection or extension 4 that extends into the space between tubes 1. One end of the extension 4 is made longer, as indicated at 4, than the other, so that one of the curved surfaces 3 extends farther around the tubes than the other one. The portion 4 of the extension is made suiiiciently great so that it projects beyond the plane of the center lines of the tubes. The tile can be put in place and removed by revolving the same with the long curved surface 3 in contact with the tubes.

, The tile are installed with the long portions 4 of the projections 4 alternating, as most clearly indicated in Fig. 3.

In the modification shown in Fig. 4 the tile are provided withv a notch 5 at one end and a flange or rib 6 at the other end, so that when the tile are assembled the joints between the same will be broken, as most clearly indicated at the middle of Fig. 4.

In the modification shown in Figs. 5 to 10 the tile are made longer than the distance between center lines of tubes so that the tile overlap and provide spaces through which of the tile 1928. Serial N0. 323,596.

gases may pass.

the reference character 7,

are indicated by and each one is provided with a projection 8 i similar to the projection 4 described above. The tile 7 are also provided with the curved surfaces 9 and 10 to fit tubes 1, the surfaces 10 being of larger arc than the surfaces 9.

By having the tile longer than the distance between the center lines of the tubes and having the edges of the ends to rest upon eac other staggered spaces 11 are provided between the tubes. In order to keep the tile more securely in place against the tubes, they are provided along one side at opposite ends with grooves 12 and on the opposite side with tongues 13. The tongues 13 of one tile fit into the grooves 12 of the adjacent tile when the same are in place. When the tile are applied along the upper side of inclined tubes, as indicated in Fig. 8, there is less danger of the same becoming accidently displaced.

I claim.:

In combination, a row of tubes and tile ap'.

said tubes.

CHARLES H. JOHNSON.

loo' 

